科斯莫诺特冰川是南极洲的冰川，位于维多利亚地的博克格雷温克海岸，处于南十字山脉，全长28公里，流经阿罗黑德山脉南部，最终注入飞行员冰川。

Cosmonaut Glacier (73°26′S 164°30′E / 73.433°S 164.500°E / -73.433; 164.500) is a tributary glacier, 15 nautical miles (28 km) long, in the Southern Cross Mountains, flowing east along the south side of the Arrowhead Range to enter Aviator Glacier, in Victoria Land. It was named by the northern party of the New Zealand Geological Survey Antarctic Expedition, 1962–63, in association with Aviator, Aeronaut, and Astronaut Glaciers.